Keystones — Capstone
Five GCSE retrieval questions · 8 August 2026 · mathsvault.uk/keystones
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1. Number Dividing in standard form
Divide: 1.7 × 106 ÷ 6.1 × 106
Answer: 2.79 × 10-1 -
2. Algebra Solving non-monic quadratics
Solve: 2x² + 10x + 12 = 0
Answer: x = -3 or x = -2 -
3. Geometry SOHCAHTOA — missing angle
Adjacent = 30cm, hypotenuse = 37cm. Find the angle
Answer: 35.8° -
4. Ratio Mixed ratio problems
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics Median
Find the median of: 78, 66, 24, 65, 69, 40, 78, 21, 41, 62
Answer: 65